Refrigerating appliance.



I R. J. S

REFRIGERATING APPLIANLL.

APPLICATION FILED OCT. 28, 1914.

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REFRIGERATING APPLIANCE.

APPLICATION FILED OCT. 28. I914. Lgflfi fi,

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R. J. SCOTT.

REFRIGERATING APPLIANCE.

APPLICATION FILED OCT. 28', 1914.

Patented June 19, 1917.

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R. J. SCOTT.

REFRIGERATING APPLIANCE.

APPLICATION FILED OCT. 28, I914.

Patented June 19, 1917.

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"an is ninja i 'o SCOTT, 01" CANTON, GHIO.

REHR-IfiERA'IING APFLIANCE.

Specification of Letters Patent.

Patented June 19, 191?.

Application filed fictobcr 28, 1914. Serial No. 869,015.

T 0 all 207mm 2'23 may concern:

Be it known that l', ROY J. Scotrr, a citizen of the United State,residing at Canton, in Stark county and State of Ohio, have invented anew and useful Refrigerating Appliance of which the following is aspecification.

This invention relates to the automatic regulation of refrigerant tocooler in a refrigerating plant.

The objects of my invention are first; to automatically regulate thesupply of refrigerant to cooler, second; to always maintain the coils incooler in a flooded condition. third; to always furnish .dry torefrigerating machine, fourth; to return" gases gene ated by refrigerantin cooling itself direct to refrigerating machine without first passingthrough cooler.

I attain these objects by the mechanism. illustrated in the accompanyingdrawings.

Figure 1 a front elevation of the entire apparatus.

Fig. 11 vertical section of same.

a section on line 33 looking downwa Fig. a tion on line oi Fig. 2,

looking downward.

Fig. V, a section on line of Fig. 2, looking downward.

Fig. V E, a section on line 6-6 of Fig. looking downward.

Fig. VII, a section on line 7-7 of F1; looking downward.

Fig. VIII, a perspective view of guide rod showing collar and lever forsame.

To further describe 'my invention, numeral 1 indicates the lower bodyportion. To the lower body portion 1 is a flange 2 which will behereafter described. The upper body portion indicated by 3 has a flange4 similar to flange 2 of the lower body portion 1. To the top of theupper body portion 3 is a similar flange 5 for the purpose of fasteningthe top 8 by means of bolts 9. A wall 6 which separates body 1 and 3 isheld in position between flanges 2 and 4: by means of bolts 7. Thepurpose of this wall will be hereafter described. To the lower extremityof the body 1, enters a liquefied gas-supply pipe 10, on th outside ofbody 1, as best illustrated in Fig. 2.

To the pipe 10 is attached a regulator 12 and from which said regulatoris attached pipe 18 which said pipe runs to the outside of bodyportion 1. An elbow 1% is provided to run pipe 13 upwardly to elbow 15and into body portion 3 from which said gas enters pipe 16 which will behereafter described. The wall 6 has a U shaped cylindrical body portionfrom which pipe 17 runs through the center and attached to the lower endof 17 is a collar 18 which has web-ivork 19. which web work is for thepurpose of allowing the liquid to flow through into chamber 20 and downinto outlet '21 and out to the evaporating system which is not necessaryto show. A check valve is used to check it from coming back into clmmber220.

To the top ofcollar 13 is attached a bell 23 which will. be hereafterdescribed. To the'lower end of collar 18 is attached by means of screwthreads, rod 24 which said rod slides through guides 32 and 33, whichguide 32is attached to bodyQQby means of bolts 3% and 35.

Guide 33 attached to body 29 by means of bolts 35 and 345*.

A slotted regulator arm attached to regulater 19 operates in a fork l6which said fork 46 has a roller 4-3 held by pin 49 operating in the slotof the arm 25, which said fork 16 is attached by neans of screw threadsto the rod 24. A. collar 45 is arranged on arm Ql to limit the upwardmovement of pipe 17 and bell 23. The body 29 has a flange 30 whichflange 30 is attached to flange 28 of body 1 by means of bolts 31. It'will be noticed that there is a space 36 between body 1 and body 29which in said space 36 is placed the cylindrical bell 23. Mercury willbe poured into valve 44 which will enter space 36 for the purpose ofmaking a seal betweenspace 20 and 37.

The purpose of making the center of body 6 in a U shape is to provide aspace 38 into which said space enters a bell 39 screwed onto pipe 17.Space 38 is filled with mercury for the purpose of creating a seal between separator 3 and space 37.

As liquid refrigerant evaporates, gases generated thereby pass throughpipe 26, through enlarged end 27, where any entrained liquid will bedropped to base of separator 3, and. the dry gas will pass out through16 to refrigerating machine.

A filling valve 43 which is similar to that of 44: is for the purpose ofpouring the mercury into space 38 which of course you willunderstand-that it is dropped onto body 6 first and then flows intospace 38. For the purpose of equalizing the pressure between the space37 and interior of separator 3 a pipe 40 is screw threaded into body 1and to which said pipe 40 is attached a regulating valve 41 and pipe 42which, at the top, enters separator 3. The operation is'as followsLiquid re frigerant is introduced under a high pressure to pipe 13 froma receiver, flows through stop valve 11, continues through expansionvalve 12, where it is reduced to suction pipe pressure, continuesthrough 13, 1% and 15 to interior of separator 3, where the refrigerantcools itself and the gas generated thereby passes through suction lineof refrigerating machine, through pipe 16, remaining cool liquid flowsthrough pipe 17, through coupling 18, through web work 19, to space 20,through pipe 21, through check valve 22 to cooler. As cooler fills withliquid refrigerant, a hydrostatic pressure is created beneath bell 23,causing it to rise, carrying with it guide rod 24, which operates lever2 5,thus closing expansion valve 12, as refrigerant in cooler evaporatessufficiently the hydrostatic pressure beneath 23 decreases,-causing itto assume a lower position, again opening expansion va1ve12. To thelower extremity smaller bell attached to top of said pipe, said smallerbell projects downwardly into a cylindrical pocket filled with mercuryforming a seal between upper and center compartments, an inlet pipe forliquid refrigerant and containing an expansion valve, connected withsaid upper compartment, a liquid refrigerant outlet pipe connected withsaid lower compartment leading to a refrigerating coil, a refrigerantvapor pipe discharging into said upper chamber, a vapor outlet from saidupper chamber and a rod connected at one end to said web collar and atthe other end to said expansion valve.

ROY J. SCOTT.

Witnesses: I

J. A. BURRIS, CELIA A. BURRIS.

